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利用岩石热解评价仪(Rock-Eval)和热解气相色谱仪(Py-GC),对采自东营凹陷和松辽盆地的烃源岩干酪根进行了热模拟实验,探讨了地层水中所存在的无机盐类对生烃过程的影响,求得了不同盐类作用下的反应动力学参数。结果表明,无机盐类对干酪根的热解生烃过程具有不同的影响。其中,氯化盐类具有一定程度的反催化作用,其他盐类表现出正的催化作用。这种催化作用是通过降低热解反应的表观活化能或提高反应的频率因子而表现出来的。最后,对无机盐类的催化作用机制进行了初步的探讨,认为电子诱导效应理论可以初步解释无机盐类的催化作用。
The kerogen kerogen collected from Dongying sag and Songliao basin was simulated by Rock-Eval and Py-GC, and the thermal simulation experiments were carried out to investigate the existence of Of inorganic salts on the hydrocarbon generation process, obtained under different salt reaction kinetics parameters. The results show that inorganic salts have different effects on pyrolysis and hydrocarbon generation of kerogen. Among them, chloride salts have a certain degree of anti-catalysis, other salts showed a positive catalysis. This catalytic effect is manifested by reducing the apparent activation energy of the pyrolysis reaction or increasing the frequency factor of the reaction. Finally, the catalytic mechanism of inorganic salts is discussed preliminarily. It is believed that the theory of electron-induced effects can initially explain the catalysis of inorganic salts.